I think we’re about 8ft? I’ve heard there’s no minimum really. Basically you don’t want to have to physically turn your head to see either side… But beyond that the closer you are the better you see the picture.
Aiui the distance thing was more back in the day where if you sat too close you’d notice pixels. But with modern resolutions that’s not a problem anymore.
I think that’s my main complaint with the game. Once you find a way to beat the boss, you just go for that build every time. It’s so punishing and the path to get there is so long, that it’s a massive disincentive to try new things.